Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. no solution; ?
B. 
C. {(5, 7)}
D. {(2, 4)}
Answer: A
Mathematics
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Provide an appropriate response.The function f(x) = 
x2 is a probability density function on the interval [-2, -2]. Find the median of the random variable X.
A. 
B. 
C. 0
D. 1
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If possible, find the matrix product of AB.A = 
; B = 
A. AB = 
B. AB = [-5 -42]
C. AB = 
D. AB = 
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Factor the trinomial, or state that the trinomial is prime.5x2 - 2xy - 16y2
A. y(5x + 8)(x - 2) B. (5x + 8y)(x - 2y) C. (5x + 2y)(x - 8y) D. prime
Mathematics
Solve the problem.The stock market gained 7 points on Tuesday and lost 39 points on Wednesday. Find the difference between these changes.
A. -46 points B. 32 points C. 46 points D. -32 points
Mathematics